Bug 2426168 (CVE-2023-54215)

Summary: CVE-2023-54215 kernel: virtio-vdpa: Fix cpumask memory leak in virtio_vdpa_find_vqs()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A memory leak was found in the virtio-vdpa driver. The cpumask allocated by create_affinity_masks() is not freed before the function returns, causing a small memory leak each time virtqueues are set up.
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Description OSIDB Bzimport 2025-12-30 13:13:45 UTC 
In the Linux kernel, the following vulnerability has been resolved:

virtio-vdpa: Fix cpumask memory leak in virtio_vdpa_find_vqs()

Free the cpumask allocated by create_affinity_masks() before returning
from the function.
Comment 1 Alexander B 2025-12-31 04:16:20 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123025-CVE-2023-54215-d1c0@gregkh/T